Ore separating and concentrating machine.



PATBNTED JULY s, 1906. J. L. HELLYBR.. ORE SBPARATING AND GONGENTRATING MACHINE.

APPLICATION FILED DEO.4. 1905.

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No. 824,927. PATENTED JULY 3, 1906. J. L. HELLYER.

ORE SBPARATING AND GONCENTRATING MACHINE. APPLwATIoN FILED DBO. 4. 1905.

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Umm marsan @mea .'.iO'jSErH L. HELLYER, or icONiUM, IOWA, ASSIGNOR OF ONE-HALF To JOHN O. OOOK, or RUSSELL, IOWA.

ORE SEPARATING AND CONCENTRATING MACHINE'.

Specification of Letters Patent.

Patented July 3, 1906.

Application filed December 4,1905. Serial No. 290.073.

Be it known that I, JOSEPH L. HELLYER, a citizen of the United States, residing at lconium, in the county of Appanoose and State of Iowa, have invented new and useful Improvements in Ore Separating and Concentrating Machines, of which the following is a specification.

My invention relates to improvements in ore separating and concentrating machines; and the invention belongs to that type or class of machines in which the crushed or reduced ore is first dried by means of an inclined revolving iron drum, then classified into various sizes by means of screens, and, finally, the valuable particles are concentrated into as small a bulk as is economically advantageous by the fall of the particles in air-currents. This concentration of particles is generally brought about by the fall of the particles in water; but, as is well known, by this process the concentration depends upon the difference in specific gravity of the valuable ore and the waste vein stone orrock. Particles which have equal velocities of fall, though diering in size and specific gravity, are said to be equal falling or equivalent Consequently before we can separate properly by water it is necessary to classify the particles by size, so that equivalence shall not prevent a separation or lessen its sharpness.

The principal machine for separating particles of sizes ranging between one inch and one-fiftieth of an inch is the jig or jigger. The smaller sizes are separated by a variety of machines. The action of many of them is based upon the behavior of particles carried down an inclined plane by a thin stream of water. lf the gradient of the plane and the strength of the thin current are properly arranged, the denser particles will be deposited and the specifically lighter ones washed away, although they may be equal falling if allowed to settle in deep water.

The paramount obj ect of this invention is to overcome many of the difficulties experienced in concentrating in water and to produce a generally-improved ore separating and concentrating machine which will be simple in construction, cheap of manufacture, and efiicient in use.

/Vith these ends in view the invention consists in the novel construction, arrangement,

and combination of parts hereinafter de scribed, illustrated in the accompanying drawings, and particularly pointed out in the appended claims. Y

Referring to the accompanying drawings, Figure l is a longitudinal sectional vieuT of an ore separating and concentrating machine constructed in accordance with my invention; Fig. 2, an open end view of the rear 'or feed end of the machine ,Fig 3, a perspective view of several of the cells of the drier-drum shownin relative position.

Similar numerals of reference designate like parts throughout all the figures of the drawings.

As shown by the accompanying drawings, the improved ore separating and concentrating machine consists of base-beams l, supporting the side and end walls 2 of the machine, and said side andend walls 2 form the primary and secondary ore-treating trunks 3 and 4, respectively, and at the front the housing 5, containing the driergrades and hoppers used for preparing and feeding the material to said ore-treating trunks. The primary or first grade ore-treating 'trunk 3 contains a shaker-riddle 6, disposed horizontally by means of arms 7, suitably journaled therein, and said trunks 3 and 4 provide a vertically-arranged intake suctionpassage 8 at the front and a vertically-arranged suction discharge-passage 9 at 'the rear thereof.

The verticallyarranged intake suctionpassages S each contain a hinged'ly-niounted depending valve-boardl 9', provided at its lower or free end with a horizontally-arranged adjusting-bolt 10, by means of which the volume and force of the air passing upwardly through these passages may be controlled and regulated to provide for various ores and the desired concentrations thereof.

The vertically-arranged discharge-passages 9 are each provided with a transverselymounted dividing board or partition 11, subdividing the discharge-passages into front and rear passages, the front passages discharging the waste ore or tailings, and the rear passages leading to the suction-fans 12, carrying in minute quantities the lighter and finer grades of ore, such as gold-dust, &c. and other material, such as waste dirt, dust, &c. In order to catch and save the gold-dust, and thus prevent the same from being discharged ICC . hereinbefore referred to.

with the waste dirt, dust, &c., pans 13, containing quicksilver, are slidably mounted within the suction-fan casings 14 at suitable places about the suction-fans 12, as shown, and the waste ore or material is discharged through the discharge-passages 15.

The fine ore which falls through the shakerriddle 6 falls upon the inclined board 16 and is then conveyed through'a downwardly-eX- tending pipe 17 into the vertically-arranged intake suction-passage 8 of the secondary ore-treating trunk 4. Such portion of the ore as is not carried upwardly through the intake suction-passage 8 and through the secondary ore-treating trunk 4 falls beneath the intake end of said suction-passage 8.

The shaker-riddle 6 is operated by means of a pair of arms 18, pivotally secured at one end to the riddle 6 and at the other to a crank-arm 19 of a crank-shaft 20, mounted in suitable bearings 21, intermediate the primary trunk 3 and the housing 5 at the front of the machine. f

The ore-drier comprises a cylindrical main ybody portion 22, suitably mounted in the base portion of the housing 5 and contains a revoluble screw conveyer 23 and is provided at one end with a hopper 24, adapted to receive the ore as received from the crusher. In order to provide for the drying of the ore as the same is conveyed along the inner cylindrical wall 25 of the drier, a series of steamcells 26 are mounted and interposed between the'outer and inner walls 22 and 25, respectively. The cells 26 are supplied with steaml by lmeans of an intake-pipe 27 and a discharge-pipe 28, supplied with suitable globevalves 29, and the steam is permitted to circulat'e" through and about the cells 26 to `maintain a uniform heat about the ore as conveyed through and along the walls of the cylinder to the discharge end 30 of the drier.

As the ore is discharged from the drier it is caught and carried up by means of an elevator 31, the discharge end 32 of which conveys the material4 into a hopper 33, which feeds the ore upon an inclined grader or screen 34, mounted beneath coil-springs 35, suspended upon arms 36, secured to the walls of the housing 5. The grader or screen 34 is i sloped or inclined toward the sides, forming an apex at the center beneath the discharge portion of the hopper 33 above, as shown most clearly in Fig. 2 of the drawings, and the sides are formed with troughs 35, adapted to receive the coarser ore from the screen and through the medium of the chutes 36a and other suitable and convenient means convey it back to the crusher.

The grader or screen 34 is operated by means of an arm 37, pivotally secured at one end to the screen and at the other end secured to a crank-arm 38 of the crank-shaft 20, Such portion of the ore as passes through the screen 34 falls upon the chute 39 and iscon'veyed thereon through the discharge end 40 thereof, which' intersects the vertically-arranged intake suction-passage 8 of the primary ore-treating trunk 3, hereinbefore referred to.

Themachine is operated by means of any suitable source of power connected by means of a belting 41, passing over a pulley 42, secured to the shaft of the suction-fan 12 of the primary trunk 3,- and a second pulley 43 cn the same shaft transmits power to a second suction-fan 12 by means of a belting 44, passing over the same and over a pulley 45, secured to the shaft of said second suction-fan. A second pulley 46 on said last-mentioned shaft transmits power by means of a belting' power to4 the elevator-pulley 53 above by means of a belting 54, whereby the elevator is operated to elevate the material as received from the discharge end of the drier. Bankvalves are secured at or near the ends of the front passages of the discharge-passages 9, so as to allow tailings of ore to pass out as accumulated therein, and at the same time preventing air-inlet passages at these points.

From the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of my invention will be readily understood.

Having thus described my invention without having attempted to set forth all the forms in which it may be made or all the modes of its use, I declare that what I claim as my invention, and desire to secure by Letters Patent, is-

1. An ore separating and concentrating machine, consisting of primary and secondary ore-treating trunks, a vertically-arranged intake suction-passage formed at the front of said trunks, a verticallyarranged suction discharge-passage at the rear thereof, depending valve-boards hingedly mounted in said intake suction-passages, suction-fans mounted at the ends of said suction discharge-passages, a housing formed at the front and provided at its top with a hopper, a grader or screen mounted beneath said hopper, a chute mounted beneath said screen and adapted to convey material to the intake suction-passage of said primary ore-treating trunk, an ore-drier mounted beneath said chute, and

an elevator adapted to convey the material from said ore-drier to said hopper.

2. An ore separating and concentrating machine, consisting cf horizontally-arranged primary and secondary ore-treating trunks, vertically-arranged intake and discharge suction-passages formed at the front and rear portions thereof respectively, depending TCO IIO

sagaz? `valves mounted in said intake suction-pasl ore-treating trunk provided withaverticallysages, and suction-fans mountedat the ends of said discharge suction-passages.

3. An ore-separating machine, consisting of primary and secondary ore-treating trunks provided with vertically-arranged intake and discharge suction-passages and suction-fans mounted therein, depending valve-boards mounted in said intake-passages, a hopper mounted at the front portion of the machine, a grader or screen mounted beneath said hopper, a chute mounted beneath said screen and adapted to convey the material to said primary ore-treating trunk, and a drier adapted to receive the material and dry the same for deposit in said hopper.

4. In an ore-separating machine, the combination with means for drying and sizing the ore, and a primary ore-treating trunk adapted to receive the ore from the drying and sizing mechanism and containing a shakerriddle 5 of a secondary ore-treating trunk mounted beneath said primary trunk, a connecting-pipe mounted between said primary trunk and the receiving portion of said Asecondary trunk, depending valve-boards mounted in the receiving portions of said trunks, suction-fans mounted in the discharge portions of said trunks, and means for operating said shaker-riddle and said drying and sizing mechanism.

5. In an ore separating and concentrating machine, the combination with a primary ore-treating trunk provided with verticallyarranged intake and discharge suction-passages and a shaker-riddle mounted therein; of a second ore-treating trunk mounted beneath said first-mentioned trunk, a downwardly extending pipe connecting said trunks, a dividing-board mounted in said dischargepassages, and depending valves mounted in said intake suction-passages.

6. In an ore-separating and concentrating machine, the combination with ore-treating trunks provided with vertically-arranged intake and discharge passages, valves and suction-fans mounted in said intake and discharge passages, respectively, and a shakerriddle mounted in one of said trunks; of a hopper and grader mounted in Jfront of said trunks, a chute mounted beneath said grader, and means for operating said grader and shaker-riddle.

7. In an ore separating and concentrating machine, the combination with an ore-treating trunk horizontally-arranged and provided with a vertically-arranged intake-passage 5 ol a vertically-arranged discharge suction-passage, a transversely-mounted dividing board or partition mounted therein, and a suction-ian and bank-valve mounted at the end of said discharge suction-passage.

8. In an ore separating and concentrating machine,` the combination with a primary arranged intake suction-passage, a depending volve mounted in said intake suction-passage, and a shaker-riddle mounted in said primary ore-treating trunk; of a vertically-arranged discharge suction passage, a suction -ian mounted at the lower' end of said discharge suction-passage and a dividing-board mounted in said discharge suction-passage to form front and rear passages one of the passages being adapted to discharge the waste ore or tailings and the other leading directly to the suction-fan.

9. In an ore separating and concentrating machine, the combination with a horizontally-arranged ore-treating trunk provided with a vertically-arranged intake suctionpassage having a depending valve; of a vertically-arranged shaker-riddle mounted in said trunk, a vertically-arranged suction discharge-passage, a dividing-board mounted therein and providing front and rear passages, one of the passages leading directly to the suction-fan and the other being provided with a bank-valve.

l0. In an ore separating and concentrating machine, the combination with a horizontally-arranged ore-treating trunk provided with a vertically-arranged discharge suctionpassage having a suction-fan at its lower end; and a vertically-arranged discharge-passage provided with a bank-valve, of a pan, containing quicksilver, mounted within the suction-fan casing and adapted to catch the gold-dust as discharged from the discharge suction-passage.

11. An ore separating and concentrating machine, consisting of primary and secondary ore-treating trunks and provided with intake suction-passages, a vertically-arranged suction discharge-passage at the rear thereof, valve-boards in said intake suction-passages, suction-fans mounted at the end of said suction discharge-passages, and a dividing-board or partition mounted in said discharge suction-passages to form iront and rear passages, one of the passages being adapted to discharge the waste orc or tailings and the other leading directly to the suction-fans.

12. In an ore separating and concentrating machine, the combination with primary and secondary ore-treating trunks provided with vertically-arranged discharge-passages, and a shaker-riddle mounted in said primary oretreatingtrunk; of dividing-boards mounted in said discharge-passages and forming viront and rear passages therein, and suction-fans and bank-valves mounted at the lower ends of said iront and rear passages, respectively.

13. In an ore separating and concentrating machine, the combination with an ore-treating trunk provided with discharge-passages, and a bank-valve mounted at the lower end of one of said discharge-passages, of a suc- IOO IIO

tion-fan mounted at the end of the other dispassage provided With a suction-ian and a n charge-passage, and a pan Containing quick* pan, containing Quicksilver. y silver mounted therein adjacent to said sueV In testimony whereof I have alixed my tion-fan. i signature in presence of tWo subscribing Wit- 14. In an ore separating and concentrating? y nesses.

machineI the combination With a horizonl JOSEPH L. HELLYER. tally-arranged ore-treating trunk containing Witnesses:

a shaker-riddle and provided with a dischargepassage having a bank-valve; of a suotion-4 R. P. MOCLAIN, F; T; IIELLYER; 

